WO2010069024A1 - Équipement électronique avec module de détection optique compact et module de projection articulés entre eux, trouvant une application dans des équipements électroniques embarqués à écran tactile et dans d'autres dispositifs interactifs - Google Patents

Équipement électronique avec module de détection optique compact et module de projection articulés entre eux, trouvant une application dans des équipements électroniques embarqués à écran tactile et dans d'autres dispositifs interactifs Download PDF

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Publication number
WO2010069024A1
WO2010069024A1 PCT/BR2009/000423 BR2009000423W WO2010069024A1 WO 2010069024 A1 WO2010069024 A1 WO 2010069024A1 BR 2009000423 W BR2009000423 W BR 2009000423W WO 2010069024 A1 WO2010069024 A1 WO 2010069024A1
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WO
WIPO (PCT)
Prior art keywords
screen
mirror
electronic equipment
module
equipment
Prior art date
Application number
PCT/BR2009/000423
Other languages
English (en)
Portuguese (pt)
Inventor
Marcelo Ferreira GUIMARÃES
Manuel Steidle
Charles Fiamoncini
Daniel Távora de Queiroz COBRA
Renato Parenti Turcato
Original Assignee
Idee Tecnologia Ltda.
Fundação Centros De Referência Em Tecnologias Inovadoras
Experience Solutions Tecnologia Ltda.
Instituto Sapientia
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from BRPI0805438 external-priority patent/BRPI0805438E2/pt
Priority claimed from BRPI0805465 external-priority patent/BRPI0805465E2/pt
Application filed by Idee Tecnologia Ltda., Fundação Centros De Referência Em Tecnologias Inovadoras, Experience Solutions Tecnologia Ltda., Instituto Sapientia filed Critical Idee Tecnologia Ltda.
Publication of WO2010069024A1 publication Critical patent/WO2010069024A1/fr

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Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/12—Picture reproducers
    • H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
    • H04N9/3191—Testing thereof
    • H04N9/3194—Testing thereof including sensor feedback

Definitions

  • the present patent application deals with an inventive solution in the field of application dictated by electronic equipment, especially those with interactive screen (s) with embedded sensing technology, also known to those who militate in the field as technology.
  • touch screen provided with interactive devices, developed for the individual or simultaneous use of multiple users, where this type of equipment finds great application in the areas of education, training, planning, decision making, supervision and control; artistic creation and production, among other applications; the equipment is shown to be composed of a plurality of devices and functional modules, notably an opening / closing device of the equipment; a functional image projection module; an optical sensing module; an information emitting device and an information control and processing module, all of which are supported by a column, and the innovation itself lies in the possibility that this equipment can present its articulated projection and sensing functional modules, such as radial opening movements or closure near the ends of the column, provided with hinged elements, where in particular the optical sensing module is compact, thanks to the unprecedented concept of indirect capture of images generated on the inside of the screen, such as "touch screen” or "multi” -touch
  • the devices are arranged with an upright foreground image, with a single screen, further integrating components such as a slanted table whose surface is defined by a touch screen (or multi-touch) It has embedded transduction technology, featuring various software and accessories, such as a keyboard design, and may also have wireless communication devices for example.
  • transduction technology there is a great diversity of physical principles being used, it is possible to highlight transparent electric conductive blades with touch detection through variation of electric resistance, capacitance and field forces, ultrasonic transducers applied to blades of glass or light beams tangent to the surface.
  • sensing systems that make use of optical principles to recognize pressure points on the face of a translucent surface where this contact generates a reaction due to a physical phenomenon, interfering with the internal reflection of visible light and highlighting, are noteworthy.
  • infrared generating light spots corresponding to the touch area (s), which can be detected by the camcorder sensitive to visible and infrared light, positioned in front of the other surface face.
  • suitable software processes real-time generated video frames, identifying the coordinates of the point (s) touched, and passing them on to applications that can then use the "" screen surface.
  • multi-touch "as an input device.
  • multi-touch devices many use optical principles for pressure point recognition, particularly those consisting of simultaneous multi-touch sensitive surfaces, commonly referred to as “multi-touch” devices, where they are in their entirety. Most are based on the principle of frustrated Total Internal Reflection (FTIR), in which a translucent material plate is used as an optical guide for visible and infrared light and a camcorder is used to capture a sequence. images of said surface.
  • FTIR frustrated Total Internal Reflection
  • Multi-touch surfaces are currently available on the market in the form of difficult tables or interactive panels. portability.
  • the height of the tables (in the case of horizontal surfaces) and the depth of the panels (in the case of vertical surfaces) is typically about half of the diagonal dimension of the surface.
  • the device thickness is about 30 inches, or 75 cm.
  • the current sensing devices with optical principle present constructivity that imposes large size, limiting their use only in locations with large area and also makes it impossible to introduce portability to electronic equipment with embedded multi-touch technology. .
  • Multi-touch is explained by the need to position the camera far enough away from the touch screen so that the image covers the entire surface. However even with the use of wide angle lenses, this distance, as stated above, is equal to about half the diagonal dimension of the surface.
  • the aperture angle of the lens that can be used is limited by the introduction of distortions in the image, with consequent loss of resolution, which compromises the performance of the device.
  • the applicant devised an unprecedented electronic equipment with compact optical sensing module and projection module articulated with each other and applied in electronic equipment shipped with surface pressure sensitive screens, where one of the The purpose of this request is that the "electronic equipment" operated by one or several users be provided with an integrated system of interactive devices, whose development paradigm was based on achieving excellence and functional reliability for this type of equipment, solving, in particular, the portability problem, a problem revealed in the numerous solutions anticipated by the state of the art.
  • the compact optical sensing module presents with constructivity that should converge to the reduction of the depth dimension of the camera-surface assembly (especially when considering the technology in "multi-device”). touch "), for a given diagonal surface dimension, of less value than that already practiced in related solutions known in the prior art, where this condition is made possible by the introduction of a convex mirrored surface with a particularly projected, as well as the repositioning of the image capture camera, which is now placed on the rear end of the touch screen and / or multi-touch screen.
  • the new sensing module confers greater differentiated commercial value as it ensures wide penetration into niche markets eager for compact and portable solutions, both interactive device cell-type equipment designed for single or simultaneous use by multiple users;
  • the unprecedented compact sensing module brings in its core ergonomic, handling and transport features.
  • the optical sensing module and the opening / closing device of the equipment are differentiating aspects that give the new equipment the requirements of novelty, inventive activity and industrial application, where in particular the sensing module is decisive in the physical reduction of the equipment.
  • the volume of the equipment, while the opening / closing device of the equipment allows an optimization of this volume when it is not in use, thus ensuring its portability and ergonomics of transport.
  • the said optical sensing module is provided with unprecedented technology, which is based on an odd arrangement of the "screen, one or more differentiated mirrors and camera” components, where this camera is positioned at the rear end of the screen component, which, in turn. Instead, it may be in a linear or inclined position relative to the rest and support surface of the equipment, and immediately below this screen is defined one or more special mirrors, which have a flat surface in its frontal area that migrates linearly to an area convex near its extreme posterior portion.
  • the minimum distance between screen and one or more mirrors ensures the mounting of a compact sensing module, without prejudice to the quality of images captured by the camera.
  • the integrated system of interactive devices stands out for the application of the unprecedented optical sensing module that innovates by presenting compact dimensions, the result of an unprecedented physical arrangement of its main components (screen + one or more special mirrors + camera), giving the equipment the inventive activity requirement, since electronic equipment of this nature, known from the state of the art, has a large common feature.
  • the sensing module is compact, it does not compromise the final quality of operation of the "touch screen” or “multi-touch” screen, as its operational area is reduced without, however compromise the operating ergonomics of the table of which it is part.
  • Figure 1 is a longitudinal sectional side-view representation of multi-user equipment having an optical sensing device anticipated by the state of the art
  • Figure 2 is a plan view of a touch screen of multi-user equipment revealing one embodiment of its constructivity
  • Figure 3a is a side view representation of a first embodiment of the claimed optical sensing device
  • Figure 3b is a longitudinal view representation of a first embodiment of the claimed optical sensing device
  • Figure 3c is a plan view of the first embodiment of the optical sensor device claimed herein;
  • Figure 3d is a perspective representation of an alternative embodiment of the optical sensor device claimed herein;
  • Figure 4a is a side view representation of a second embodiment of the claimed optical sensing device
  • Figure 4b is a longitudinal view representation of the second embodiment of the claimed optical sensing device
  • Figure 4c is a plan view of the second embodiment of the optical sensing device herein. claimed;
  • Figure 4d is a perspective representation of the second embodiment of the optical sensor device claimed herein;
  • Figure 5 is a perspective view representation of the shape of the special mirror component claimed herein;
  • Figure 6 is a perspective representation of the compact optical image capture sensor based on a camcorder and a pair of flattened mirrors, according to a constructive variation developed with respect to figures 1 to 5;
  • Fig. 7 is a side view representation of Fig. 6;
  • Figure 8 is a plan view of the compact beacon-based optical image sensing device in conjunction with the camcorder and pair of flat mirrors illustrated in Figures 6 and 7;
  • Figure 9 is a front view representation of the compact beacon-based optical image sensing device in conjunction with the camcorder and pair of flat mirrors;
  • Figure 10 represents a preferred constructional option through the front perspective representation of the electronic equipment provided with a compact sensing module and an articulated projection module;
  • Figure 11 is a rear perspective view of the electronic equipment provided with a compact sensing module and hinged projection module;
  • Figure 12 is a front perspective view of the electronic equipment provided with a compact sensing module and an articulated projection module in a compacted closing position
  • Figure 13 is a side view representation of the electronic equipment provided with a compact sensing module and an articulated projection module;
  • Figure 14 is a front view representation of the electronic equipment provided with a compact sensing module and an articulated projection module;
  • Figure 15 is a plan view of the electronic equipment provided with compact sensing module and articulated projection module.
  • Figure 16 is a longitudinal sectional representation "XX" of the electronic equipment provided with a compact sensing module and an articulated projection module, revealing the constructivity of each functional module and devices.
  • Figure 17 illustrates, through perspective view, an option of interlocking mechanism between modules and support bracket applied in the electronic equipment provided with interactive devices, which is properly closed and locked;
  • Figure 18 is a side view representation of electronic equipment provided with interactive devices, open in use position; provided with interlocking mechanism between modules and support bracket;
  • Figure 19 is a front perspective view of electronic equipment provided with interactive devices, open in position of use; provided with interlocking mechanism between modules and support bracket;
  • Figure 20 is a rear perspective view of the electronic equipment provided with interactive devices, open in use position; provided with interlocking mechanism between modules and support bracket;
  • Fig. 21 is a front view representation electronic equipment provided with interactive devices, open in position of use; provided with interlocking mechanism between modules and support bracket;
  • Figure 22 is a plan view of the electronic equipment provided with interactive devices, open in position of use; provided with interlocking mechanism between modules and support bracket; and
  • Figure 23 is a longitudinal sectional representation of the electronic equipment provided with interactive devices revealing their component parts.
  • the novel compact optical sensing module was conceived, which presents a constructive concept revealed through the figures 3a; 3b; 3c and 3d respectively, where the camera (Ca) is positioned adjacent to the rear edge (Th2) of the screen surface (Th), notably a touch screen or multi-screen type.
  • This camera (Ca) is directed towards the mirror surface of the new special mirror component (Es), notably a special mirror, which is positioned under and parallel to the screen (Th), and the a very small distance (h2), especially when compared to the distance (h1) found in a common optical sensing module, shown in figure 1.
  • This embodiment brings with it a technical advantage, as it requires a special mirror (s) of reduced dimensions.
  • FIGS. 4a a second embodiment for the compact optical sensing module disclosed by FIGS. 4a is disclosed; 4b; 4c and 4d respectively, where in this the front edges (Th1) and (Es1) of the screen (Th) and the mirror (Es) respectively are very close, where this condition is obtained thanks to a sharp inclination (In) of the screen ( Th).
  • the advantage of this embodiment is that it allows the depth of the device (h3) to be minimized at the front edges (Th1) and (Es1) of the screen (Th) and special mirror (Es) respectively, ie the edges opposite the rear edge. (Th2) of the screen (Th) where the camera is fixed (Ca).
  • the front edge (Es1) of the mirror surface of the special mirror (Es), farthest from the camera (Ca), can usually be specified flat, as the aperture angle of lenses typically used in the camera ( Ca) is sufficient to allow viewing of the entire front edge (Th1) of the screen surface (Th) opposite the camera.
  • the curvature of the mirrored surface (Es3) varies linearly, gradually passing from the convex profile to a flat profile, as shown in figure 5.
  • the fact that the camera (Ca) is not positioned on the axis perpendicular to the center point of the screen surface (Th), as well as the convex shape of the mirror surface special mirror (Es) introduce geometric distortions into the image, which should be corrected by the image processing software.
  • the fact that the original image has some compressed areas relative to others implies a loss of resolution in the compressed areas after correcting the distortions.
  • a camera (Ca) higher than the resolution normally used may be employed to compensate for the loss of resolution caused by geometric distortion.
  • the mirror mirror surface geometry (Es) and the angle (In) between it and the bottom surface of the screen (Th) can be calculated, by mathematical and geometric methods to limit the resulting loss of resolution in the corrected image.
  • the angle (In) between the special mirror (Es) and screen (Th) surfaces, as well as the rear edge profile (Es2) can be calculated.
  • the two embodiments disclosed above constitute extremes of a continuum of intermediate configurations in which the position of the mirror surface of the special mirror (Es) relative to the surface of the screen (Th) varies from the essentially parallel position between special mirror (Es) and screen (Th), less than the slight perceived convexity of the former) to the position in which the front edges (Th1) and (Es1) of the screen (Th) and special mirror (Es) surfaces touch, or are very close to each other.
  • a camcorder (Ca) is positioned in an intermediate plane between the first flat mirror (Es1) and the second flat mirror (Es2) and still adjacent to the outer end of the first flat mirror (Es1), and still has angular inclination (Ag) with respect to the screen plane (Th) such that its objective lens captures the image i
  • the displacement of the camcorder (Ca) to a new position located beyond the top mirror (E1) has the advantage of allowing the viewing of the entire lower useful area of the screen (Th), where to consolidate this condition of excellence the The camcorder (Ca) receives a moderately wide-angle lens, thus dispensing with the use of the convex mirror, as in the module model described in Figures 1 through 5, without however resulting in the use of the flat mirror (Es2). some kind of excessive geometric distortion.
  • a maximum tolerable factor for image resolution reduction is established by geometric analysis, where the angular inclination (Ag) of the camcorder (Ca) with respect to the screen plane ( Th), as well as the distance (H) between the planes of this screen (Th) and the flat mirror (Es2), which determines the thickness of the device's optical assembly.
  • electronic equipment (A) (figures 10 to .16) equipment (A) is provided with a compact optical sensing module (a3) associated with a column (a1), where it has as its primary function providing the support at its upper part of a projection module (a2) and at its lower part a compact sensing module (a3), whereby an opening / closing device of the equipment is defined.
  • this column (a1) has the secondary function of housing the control and information processing module (a5), where, lastly, the anterior vertical wall of this column (a1) is intended for the attachment of an information-emitting device ( a4).
  • the opening / closing device of the equipment comprises that in the connection region of the projection module (a2) and sensing module (a3) with the ends of the column (a1) a pair of articulation mechanisms is defined, notably a articulation mechanism.
  • a pair of articulation mechanisms is defined, notably a articulation mechanism.
  • Art1 that allows radial opening / closing movements of the projection module (a2) and a lower articulating mechanism (Art2) that allows radial opening / closing movements of the compact sensing module (a3)
  • this equipment ( A) in a closed condition of the projection modules (a2) and compact sensing (a3) is revealed through figure 12.
  • the projection module (a2) is formed by a housing (10) that contains a sub-chassis (11), which has inside it a
  • the sensing module (a3) is formed by an unprecedented optical sensing technology, consisting of a structure (4) that supports inside a screen (6), or monitor, with touch screen technology. and or "multi-touch", which in one possible embodiment can be a screen with different transduction technology, translated in the form of a memory effect sensing and erasing device disclosed in patent application filed 06/10/2008 entitled "Integrated Interactive Device System, With Embedded Memory Sensing And Minimization Device, Applied In Equipment Operated By One Or Multiple Users ", where it is formed by a screen composed by a set of three plates, being a protection plate; a damping and return plate and a contact plate that is superimposed on a top (7), where this assembly is delimited by a frame (8) whose internal contour has defined a plurality of "LEDs" elements.
  • this screen (6) in the embodiment disclosed herein can be positioned both parallel to the support surface of the equipment itself (A), and may also have a certain inclination (In), as revealed in Figures 4a and 12, where the specification of this inclination may vary depending on the specific needs of each equipment project (A), ranging from greater than zero degrees to less than 90 degrees.
  • a calculated surface mirror (5) which has odd geometry formed from a flattened anterior area and which migrates this surface area to a convex geometry at its posterior end.
  • the compact sensing module (a3) can be built-in with all sorts of optical sensing technology, such as;
  • Information emitting device (a4) defined in the form of a monitor (3), such as an LCD or Plasma monitor, in all sorts of dimensions, such as 20 in; 22 in; 26 in among others; and - Control and information processing module (a5): composed of all kinds of electronic elements (such as PC, video card, sources, controls and ventilation system), which are activated by commands (a6 ') arranged on the button menu form on the back wall of the column itself (a1).
  • a monitor (3) such as an LCD or Plasma monitor
  • a5 composed of all kinds of electronic elements (such as PC, video card, sources, controls and ventilation system), which are activated by commands (a6 ') arranged on the button menu form on the back wall of the column itself (a1).
  • the shape (design) and dimensions of the equipment (A) were marked by the technical characteristics that govern the dimension of the sensing module (a3), which in turn is governed by the ratio of the screen (6) - mirror (5) set. - camera (9), which in turn determined the angle of inclination (In), thus converging on determining the size of the image to be projected by screen (6), and hence the other elements.
  • This image size in turn is limited by the optical characteristics of the image projector (12), determining its position as well as the mirror (13) attached to it.
  • this mirror (13) next to the camera (9) is justified in order to decrease the overall height of the equipment (A) and give it an aesthetic continuity.
  • the control and information processing module (M2) is provided with all control electronics, such as PC, wireless communication interfaces, sources, speakers, video conferencing camera, among others, particularly in the extreme upper and lower part.
  • a central depression is defined as a depression (Al) which is intended to accommodate the mirror (Es3) of the projection module (M3) when the equipment has all modules closed and locked;
  • the projection module (M3) is formed by an image projector device that with the help of two mirrors (Es3) and (Es4) respectively, projects images onto the table of the sensing module (M1), where the first mirror (Es3 ) is fixed to the projector frame and the second mirror (Es4) is attached to a concealed base which can have 3 positions namely:
  • the articulation and locking and unlocking mechanism is notably developed for locking or unlocking the sensing module (1) and information processing and control module (M2), formed by a first joint (Ar1), in the form of a hinge system. , in particular actuated by a side switch, and in addition to the upper end of the table of the sensing module (M1) is defined a socket (Ga2) to which a hook (Ga1) mounted at the upper end of the interference is actuated. control and information processing module (M2).
  • a second hinge is defined as a hinge system mounted on the upper end of the control and information processing module (M2) and the upper end of the projection module (M3) which ensures a 180 ° articulation of this second in relation to the second module (M2), where when in the position of retraction and closing of the equipment said articulation (Ar2) ensures the accommodation of the main body of the projection module inside the depression (Al) of this second module. (M2);
  • the equipment stabilizer bracket consists of a support piece (1) mounted on the back of the sensing module (M1) to balance the assembly when in the "open" position. It is noteworthy that this stabilizing support is an integral part of the interlocking mechanism itself which is the object of claim.
  • touch screen (th) of the equipment when touched by a stick, can be used as a surface on which to write and draw, simulating the spelling performed by a pen, chalk or equivalent.
  • Objects placed on the surface are identified by one or more cameras fixed above the monitor and allow board function for interactivity such as games and others.
  • the equipment can provide headphone jacks, such as "audio cap” technology, allowing coordinated communication between people without interfering with normal conversations, and sound from the speakers can be reduced or eliminated. , not disturbing others around the equipment.
  • Presence and motion sensors can be provided, fixed on the top of the equipment, which detect movements and other attitudes of users of equipment, enabling interactivity for games and manipulation by digital content gestures.
  • the embodiments described in this constructive detail topic of the invention are provided by way of example only. Changes, modifications and variations may be made to any other particular constructive embodiment by those skilled in the art without, however, departing from the objective disclosed in the patent application, which is exclusively defined by the appended claims.

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • User Interface Of Digital Computer (AREA)

Abstract

L'invention concerne une solution innovante trouvant une application dans le domaine des équipements électroniques, tels que, notamment, ceux comprenant des écrans interactifs avec technologie de détection embarquée, également connue par les spécialistes sous le nom de technologie "tactile", pourvus de dispositifs interactifs mis au point en vue d'une utilisation individuelle ou simultanée par de multiples utilisateurs, ce type d'équipement trouvant une application importante dans les domaines de l'éducation, de la formation, de la planification, des processus décisionnels, de la supervision et du contrôle, de la création et de la production artistique, entre autres applications. L'équipement (A) comprend une pluralité de dispositifs et modules fonctionnels, notamment un dispositif d'ouverture/fermeture de l'équipement, un module fonctionnel de projection d'images, un module de détection optique et un dispositif d'émission d'informations, lesquels sont tous montés en colonne. L'innovation à proprement parler réside dans la possibilité pour cet équipement de présenter des modules fonctionnels de projection et de détection articulés, permettant des mouvements radiaux d'ouverture ou de fermeture au niveau des extrémités de la colonne, qui sont pourvues d'éléments d'articulation. Plus particulièrement, le module de détection optique présente une structure compacte grâce au concept inédit de capture indirecte d'images générées sur l'intérieur de l'écran, du type "tactile" ou "multipoint".
PCT/BR2009/000423 2008-12-15 2009-12-14 Équipement électronique avec module de détection optique compact et module de projection articulés entre eux, trouvant une application dans des équipements électroniques embarqués à écran tactile et dans d'autres dispositifs interactifs WO2010069024A1 (fr)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
BRPI0805438 BRPI0805438E2 (pt) 2008-12-15 2008-12-15 mecanismo de intertravamento entre módulo de sensoriamento óptico compacto e módulo de projeção articulados aplicados em equipamento eletrÈnico com dispositivos interativos e apoio para o equipamento eletrÈnico
BRPI0805438-0 2008-12-15
BRPI0805465 BRPI0805465E2 (pt) 2008-12-15 2008-12-15 dispositivo compacto de sensoriamento óptico por captura de imagens balizado em conjunto cámera de vìdeo e um par de espelhos planificados, aplicado em equipamentos eletrÈnicos embarcados com telas sensìveis à pressão superficial
BRPI0805465-7 2008-12-15
BRC10805465-7 2009-08-27
BRC10805438-0 2009-10-16

Publications (1)

Publication Number Publication Date
WO2010069024A1 true WO2010069024A1 (fr) 2010-06-24

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PCT/BR2009/000423 WO2010069024A1 (fr) 2008-12-15 2009-12-14 Équipement électronique avec module de détection optique compact et module de projection articulés entre eux, trouvant une application dans des équipements électroniques embarqués à écran tactile et dans d'autres dispositifs interactifs

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WO (1) WO2010069024A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2260426Y (zh) * 1996-01-04 1997-08-20 上海高翔科技实业总公司 多功能视频显示仪
US20050190162A1 (en) * 2003-02-14 2005-09-01 Next Holdings, Limited Touch screen signal processing
US20080088587A1 (en) * 2001-02-22 2008-04-17 Timothy Pryor Compact rtd instrument panels and computer interfaces
KR20090102815A (ko) * 2006-12-18 2009-09-30 아벨 데이비스 다중 디스플레이 환경에서 이미지를 나타내기 위한 장치, 시스템 및 방법

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2260426Y (zh) * 1996-01-04 1997-08-20 上海高翔科技实业总公司 多功能视频显示仪
US20080088587A1 (en) * 2001-02-22 2008-04-17 Timothy Pryor Compact rtd instrument panels and computer interfaces
US20050190162A1 (en) * 2003-02-14 2005-09-01 Next Holdings, Limited Touch screen signal processing
KR20090102815A (ko) * 2006-12-18 2009-09-30 아벨 데이비스 다중 디스플레이 환경에서 이미지를 나타내기 위한 장치, 시스템 및 방법

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